Shelf jig



FIG. 1 is a top perspective view of the shelf jig;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a side view thereof showing the side opposite that shown in FIG. 5 ;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line showing of a shelf jig is for the purpose of illustrating portions of the article and forms no part of the claimed design. 

CLAIM I claim the ornamental design for the shelf jig, as shown and described. 